Solve a right triangle from two side lengths and find the hypotenuse, angles, area and perimeter.
Right triangles, areas, slopes, distances and common coordinate-geometry formulas.
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For legs 3 and 4, the hypotenuse is 5 and the area is 6.
Solve a right triangle from two side lengths and find the hypotenuse, angles, area and perimeter. The result is intended for quick estimates, checking arithmetic and comparing scenarios. When a result affects a contract, tax filing, medical decision, building-code requirement or other high-stakes situation, verify the result with the appropriate professional or authoritative source.
A right triangle with legs 8 and 15 has hypotenuse √(8² + 15²) = 17, area (8 × 15) ÷ 2 = 60 square units, and perimeter 8 + 15 + 17 = 40 units.
Angle caution: acute angles depend on which leg is opposite the angle being named. The two acute angles must sum to 90 degrees. Enter positive leg lengths measured using the same unit.
Solve a right triangle from two side lengths and find the hypotenuse, angles, area and perimeter.
c = √(a²+b²). Acute angles can be found with inverse tangent, such as A = arctan(a/b).
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